Which statement is true regarding axillary temperature measurement?

The statement that axillary temperature measurement is less reliable than oral and rectal methods highlights an important aspect of temperature assessment in clinical practice. Axillary measurements typically reflect a lower body temperature than what is considered accurate for core temperature. This is primarily due to the location of the axilla, which can be affected by various factors such as ambient temperature, the placement of the thermometer, and the presence of sweat.

In contrast, oral temperatures generally provide a more accurate reflection of core body temperature because they measure heat coming from the bloodstream in the mouth. Rectal temperatures are often regarded as the gold standard for accuracy, especially in clinical settings, because they are least affected by external variables and reflect core body temperature closely.

The reliability of axillary measurements can vary depending on the age of the patient and specific situational factors, but they are recognized as less dependable than oral and rectal methods in adults and older children. Thus, understanding the limitations of axillary temperature measurement is crucial for accurate patient assessment and care.